S 420 (140.043) V8-4.2L (119.981) (1996)
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Drive Belt Tensioner: Service and Repair
2ND and 3RD Versions
Preparation
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Poly V-belt removed. See: Drive Belt/Service and Repair
Overview
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End cover (6) take off, fit on.
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2nd version: unscrew bolt (5), screw on
Tighten to: 25 Nm.
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3rd version: unscrew nut (5a), screw on.
Tighten to: 25 Nm.
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Remove tensioning pulley (3), install.
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Unscrew bolts (11) and (12), screw on
Tighten to: 21 Nm.
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Remove tensioning device (1) with sleeve (2), install.
